Fractional


Type 680 Fractional - Carbide Spear Point - Straight Shank
Carbide Tipped
  • Carbide tip brazed to hardened tool steel body
  • Long carbide tip permits many regrinds
 
Use:
  • For drilling glass, tile porcelain, ceramic and other hard, fragile materials without chipping or cracking the material when properly used
  • Speed should be approx. 25 surface feet per minute (150 to 760 RPM based on tool diameter) using a steady, moderate hand feed
  • Constant flow of coolant important
  • Material being drilled should be backed with wood or rubber to support material during drill break-through
  • Avoid vibration and excessive stress
  • Keep drill sharp to eliminate excessive pressure
Below is a list of standard Glass & Tile Drills offered by Hannibal Carbide Tool. If you do not see the Glass & Tile Drills you are looking for you can click here for our SPECIAL TOOL QUOTE REQUEST FORM and fax (573-221-1140) or email your request to Hannibal. Within 24 hours we will let you know how we can supply your Glass & Tile Drills. For technical assistance with your Drills please click here to fill out and submit our HANNIBAL TECHNICAL SUPPORT QUESTIONNAIRE.
Tool Diameter Dimensions Type 680
EDP NO.
Fractional
Price
Frac. Dec. Shank Diameter Overall Length
   1/  .1250    7/64  1/ 68008 $17.45
   3/16  .1875    5/32  1/ 68012 17.45
   1/  .2500    7/32  1/ 68016 20.05
   5/16  .3125    1/         68020 25.80
   3/  .3750    5/16  1/ 68024 28.70
   7/16  .4375    3/  1/ 68028 32.55
   1/  .5000    7/16  1/ 68032 35.50
   9/16  .5625    1/         68036 49.90
   5/  .6250    9/16         68040 60.15